burning BlueRay which software/drive/media

[Thomas <thomasitcom@gmail.com>]

Hi,

I try do burn BlueRay disk.
I have an HL-DT-ST and have used 
#wodim
and 
#growisofs

I have reduced the burn speed but writing is still failed


# growisofs -Z /dev/sr0 -R -speed=1 -input-charset utf-8 -J /tmp/data
# wodim -v speed=1 dev=/dev/sr0 /tmp/data

Is there any other programm or is the problem the writer and/or typ of media


Thanks 
Thomas